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This sponsored series of magazine articles by GNSS experts covers pressing issues for engineers, designers, manufacturers and policy makers of the global satellite navigation systems. It is underwritten by NovAtel, a Canadian manufacturer of high-precision GNSS OEM systems and components.

Thought Leadership series topics include:

• How vulnerable is GNSS?
• Predicting space weather and GNSS effects
• GNSS and INS integration challenges
• Compatibility and interoperability among the systems

Columns
September/October 2014

GNSS & Geodesy

Let’s get literal for a moment. What shape is the world in? GNSS can help us answer that question.
July/August 2014

GNSS & Geohazards

For at least 20 years, GPS experts, geodesists, and public agencies have been working together to develop high-accuracy, large-scale continuously operating GPS reference stations that provide them the capability to monitor and model crustal deformation, tectonic plate movement, and the effects of geohazards such as earthquakes and volcanic eruptions. Now, GNSS-augmented advance warning systems are going into place that can give us a crucial margin of safety in the event of an earthquake.
May/June 2014

GNSS in Military Affairs

Born in the depths of the Cold War, the Global Positioning System pioneered a long and winding road to its preeminent status in myriad civilian uses. But it began — and continues — as a quintessentially military utility. What’s that mean in today’s world?
March/April 2014

New GNSS Signals

After 46 years of familiarity with the GPS C/A code, GNSS manufacturers and civil users are being introduced to a bunch of relative strangers: nearly a dozen new signals coming on the air in the next few years.
January/February 2014

Multi-GNSS Monitoring

Why bother tracking signals from more than one global navigation satellite system? Isn’t GPS (or GLONASS, or BeiDou, or Galileo) enough?
November/December 2013

RF Spectrum Protection

Growing pressure on a limited resource is squeezing users and giving rise to proposals for “sharing” spectrum. Will GNSS be lost in the noise?
September/October 2013

GNSS Antennas

Chris Bartone talks about GNSS antennas: how multiple GNSSes and multiple signals affect their design and operations, some common errors and their mitigation and how phase center offsets and group delay variations affect GNSS measurements.
July/August 2013

Spoofing

GNSS receivers can be fooled, but haven’t been much…thus far. Should GNSS stakeholders gamble on the status quo? Will widespread spoofing arrive before antispoofing solutions are in place?
May/June 2013

BeiDou

In six short years, China has built a fully functional regional GNSS system, BeiDou. How is it doing so far and where is it heading?  
March/April 2013

Civil Use of UAS

Unmanned aerial systems have a long association with military uses. So, plans to expand their civil applications are generating a lot of heat.
January/February 2013

GNSS and Ubiquity

Omnipresence. GNSS systems are global by nature, but they can’t provide reliable positioning anytime, anywhere. Meet their new friends.
November/December 2012

GNSS Positioning and Precise Timing

When it comes to GNSS, everybody talks about location, location, location. But shouldn’t it really be time, time, time? So much critical infrastructure depends on GNSS-provided time - communications, banking and finance, emergency services, electrical power grids, to name a few.
September/October 2012

GNSS Augmentations

Five to ten meters might seem like pretty good real-time accuracy. But not when you’re landing an airplane or guiding a farm vehicle through a field.
July/August 2012

Interference & Jamming

Personal privacy devices. LightSquared. Solar max. It can be a hostile world out there for GNSS technology.
May/June 2012

Multi-GNSS Integration

With GNSS, the more, the merrier — true or false?
March/April 2012

GNSS Modernization

As the world’s GNSS systems gain traction in building out constellations with new capabilities, what can be done to achieve maximum benefits?
January/February 2012

Challenges in GNSS /INS Integration

Inertial technology, rather than being eclipsed by GNSS, has found new life on its own and in integrated systems. But engineers from both sides of the divide have much to learn about the other. This is one in a series of sponsored articles by NovAtel.
November/December 2011

Solar Max and Space Weather Prediction

Space weather—lots of people are talking about it, but can we do anything about it? The current solar cycle will peak in May 2013. What will that mean for GNSS equipment designers and users?
September/October 2011

Multiple GNSS: Compatibility & Interoperability

Rapidly proliferating numbers of satellites mean more signals available for use. But could we end up having too much of a good thing?
July/August 2011

Inertial technology, MEMS, and GNSS

In one form or another, inertial technologies preceded the advent of GNSS by many decades. Today, GNSS has captured the spotlight: But is there room — and a need — for more?
May/June 2011

RF Spectrum Allocations, Interference, and GNSS Receiver Design

Here’s a cold, hard fact about radio frequency spectrum: it’s finite, and no one is making any more of it. And here’s another fact: It’s crowded.
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